RF Operational Characteristics

Phone Operation

When placing or receiving a phone call, hold your radio product as you would a wireline telephone. Speak directly into the microphone.

Two-way radio operation

When using your radio product as a traditional two-way radio, hold the radio product in a vertical position with the microphone one to two inches (2.5 to 5 cm) away from the lips.

Body-worn operation

To maintain compliance with FCC RF exposure guidelines, if you wear a radio product on your body when transmitting, always place the radio product in a

Motorola approved clip, holder, holster, case or body harness for this product. Use of non-Motorola-approved accessories may exceed FCC RF exposure guidelines. If you do not use a Motorola approved body-worn accessory and are not using the radio product in the intended use positions along side the head in the phone mode or in front of the face in the two-way radio mode, then ensure the antenna and the radio product are kept the following minimum distances from the body when transmitting:

Phone or Two-way radio mode: one inch (2.5 cm)

Data operation using any data feature with or without an accessory cable: one inch (2.5 cm)

Antenna Care

Use only the supplied or an approved replacement antenna. Unauthorized antennas, modifications, or attachments could damage the radio product and may violate FCC regulations.

DO NOT hold the antenna when the radio product is “IN USE”. Holding the antenna affects call quality and may cause the radio product to operate at a higher power level than needed.

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Nextel comm i58sr manual Phone Operation, Two-way radio operation, Body-worn operation, Antenna Care, 189

i58sr specifications

The Nextel i58sr was a standout device in the realm of communication technology, primarily catering to business and professional users. Released as part of Nextel's ruggedized phone lineup, the i58sr was designed with durability and functionality in mind, making it a reliable choice for users in demanding environments.

One of the defining features of the i58sr was its sturdy design. The phone was built to withstand tough conditions, with a rugged exterior that offered resistance to shocks, vibrations, and water. This made it ideal for users who worked in construction, outdoor activities, or any field where accidents and rough handling were a possibility.

The i58sr boasted a compact and lightweight form factor, making it portable and easy to handle. Its ergonomic design included a comfortable grip, essential for prolonged use in the field. The device also featured a clear display that provided essential information at a glance, ensuring that users could easily navigate through applications and features even in bright sunlight.

A significant highlight of the Nextel i58sr was its push-to-talk capability, which allowed for instant communication with other Nextel users. This feature enabled users to connect with team members quickly, facilitating coordination and enhancing productivity, especially in high-paced work environments. The phone also supported traditional voice calls, ensuring versatility in communications.

Technologically, the i58sr utilized Nextel's iDEN network, combining radio communication and cellular service to deliver unique features like two-way radio capability. This hybrid technology enhanced the range of communication options available to users, allowing for seamless transitions between direct radio and phone calls.

In terms of battery life, the i58sr performed admirably, providing extended usage capabilities that were crucial for users often away from power sources. This reliability was further complemented by the device's long-standing reputation for functionality, which included features like programmable buttons for quick access to frequently used functions.

In summary, the Nextel i58sr was a significant player in the domain of rugged communication devices. Its combination of durability, push-to-talk capabilities, and a reliable power source made it a preferred choice for professionals in various industries. By blending traditional voice calls with advanced push-to-talk technology, it stood out as an essential tool for effective communication in challenging environments.